The company, valued at $68 billion, has had a rocky few months.

In January, critics of the company began a #DeleteUber campaign after Uber turned off surge pricing at New York City airports.

At the time, taxi drivers were protesting President Trump’s travel ban by calling for a stop to pickups at JFK, where two Iraqis were being detained. Uber’s decision effectively lowered the cost of a ride on its service.

And in February, the company was hit with sexual harassment claims from a former engineer. In a lengthy blog post, the woman accused the company of systemic sexism that included being propositioned for sex.

March also saw more controversy for the company.The New York Timesreported that Uber had developed a tool that it used to deliberately deceive authorities in cities that had either banned the app or were trying to restrict its use.

In a letter to employees Sunday, CEO Travis Kalanick said that Jones made the decision after the company said it would hire a chief operating officer. Kalanick is looking for a new second in command that could help him steer the company’s trajectory.

“Jeff came to the tough decision that he doesn’t see his future at Uber,” Kalanick wrote.

Jones did not immediately respond to a request for comment.

Uber has already lost several big executives in recent weeks.

Uber’s head of growth and product, Ed Baker, resigned from the company earlier this month.

And Amit Singhal, its head of engineering, resigned in late February after Recode reported that he had left a previous job at Google because of sexual harassment claims.(CNN)